Rift Crystal

The Rift Crystal is a material. The game states that it is "An otherworldly object that can sever the fabric of space and time. A leading cause of missing keys."

Robes
Description: Has a chance to ignore damage taken.

The maximum Evasion Chance is 50%, which can be achieved by slotting 3 Grade A Rift Crystals onto the robe.

Spells
Description: Teleports you towards the cursor when cast.

Technically, the maximum teleport range is the whole screen, as the player's cursor cannot point to locations that are out of the screen. Increasing the screen resolution of the game can increase the maximum teleport range.